A New Method of Testing the Surface Finish of a Metal

1968 ◽  
Vol 90 (2) ◽  
pp. 404-406
Author(s):  
B. C. Panda
Keyword(s):  
Field Emission ◽  
Metal Surface ◽  
Surface Finish ◽  
New Method ◽  
Emission Current ◽  
Field Emission Current ◽  
Classical Calculation ◽  
Sensitive Method

A sensitive method of testing the surface finish of a metal has been suggested based on the principle of field emission. The quasi-classical calculation of the field-emission current from a plane metal surface shows that the calculated current is always less than the experimental current. The discrepancy between these theoretical and experimental currents has been shown to be a measure of the nonplanarity of the metal surface from which one can get information about how much finish a particular metal surface can take.

scholarly journals THEORETICAL STUDY OF INFLUENCE OF MODIFICATION OF THE METAL SURFACE ON MAGNITUDE OF THE FIELD EMISSION CURRENT IN GRADIENT-STABLE ACCELERATING STRUCTURES

2019 ◽  
pp. 100-104
Author(s):  
I. I. Musiienko ◽  
R. I. Kholodov
Keyword(s):  
Field Emission ◽  
Metal Surface ◽  
Potential Barrier ◽  
Current Density ◽  
Emission Current Density ◽  
Emission Current ◽  
Vacuum System ◽  
Near Surface ◽  
Dipole Layer ◽  
Field Emission Current

Quantum-mechanical problem on electron motion through the model potential barrier of the metal-vacuum system with an additional near-surface dipole layer is considered. Taking into account the continuity conditions of the wave functions and their derivatives at the interface between the two media, general expressions of the coefficient of transparency of the potential barrier and a current density of field emission is obtained in the framework of this model. It is shown the influence of the effective thickness of the dipole layer of the metal surface on a value of the field emission current density.

Critical fluctuations of the field emission current

1994 ◽  
Vol 317 (1-2) ◽  
pp. 253-258 ◽  
Author(s):  
E.S. Shikhovtseva ◽  
K. Skwarek ◽  
J. Bȩben
Keyword(s):  
Field Emission ◽  
Emission Current ◽  
Critical Fluctuations ◽  
Field Emission Current

Measurement of field emission current variations caused by an amplitude modulated laser

2002 ◽  
Vol 327 (1) ◽  
pp. 7-15 ◽  
Author(s):  
M Brugat ◽  
M.S Mousa ◽  
E.P Sheshin ◽  
M.J Hagmann
Keyword(s):  
Field Emission ◽  
Emission Current ◽  
Field Emission Current

scholarly journals Relativistic Correction of the Field Emission Current in the Fowler-Nordheim Formalism

2019 ◽  
Vol 11 (2) ◽  
pp. 02022-1-02022-6 ◽  
Author(s):  
S. O. Lebedynskyi ◽  
◽  
O. O. Pasko ◽  
R. I. Kholodov ◽  
◽  
...  
Keyword(s):  
Field Emission ◽  
Relativistic Correction ◽  
Emission Current ◽  
Field Emission Current

Stable field-emission from a CeB6 nanoneedle point electron source

Nanoscale ◽  
2021 ◽  
Author(s):  
Shuai Tang ◽  
Jie Tang ◽  
Yimeng Wu ◽  
You-Hu Chen ◽  
Jun Uzuhashi ◽  
...  
Keyword(s):  
Field Emission ◽  
Focused Ion Beam ◽  
Ion Beam ◽  
Electron Source ◽  
Emission Current ◽  
Field Emission Current ◽  
Stable Field ◽  
Single Emission

A single CeB6 nanoneedle structure has been fabricated using a focused ion beam (FIB) and it shows an excellent field emission current stability as well as a single emission spot.

Impact of inrush current on field emission current and voltage distribution in series vacuum gaps

2019 ◽  
Vol 26 (1) ◽  
pp. 162-170 ◽  
Author(s):  
Feng Zhao ◽  
Yingyao Zhang ◽  
He Yang ◽  
Hongtu Xue ◽  
Yingsan Geng ◽  
...  
Keyword(s):  
Field Emission ◽  
Emission Current ◽  
Inrush Current ◽  
Voltage Distribution ◽  
Field Emission Current ◽  
In Series ◽  
Vacuum Gaps
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